The deadly school shooting at a Connecticut elementary school was the latest in a series of shooting crimes in the United States this year.
Following are some of the worst such incidents in the United States in 2012:
April 2 – A gunman kills seven people and wounds three in a shooting rampage at a Christian college in Oakland.
July 20 – A masked gunman kills 12 people and wounds 58 when he opens fire on moviegoers at a showing of the Batman film The Dark Knight Rises in Aurora, a suburb of Denver, Colorado.
August 5 – A gunman kills six people during Sunday services at a Sikh temple in Oak Creek, Wisconsin, before he is shot dead by a police officer.
August 24 – Two people are killed and eight wounded in a shooting outside the Empire State Building in New York City at the height of the tourist season.
September 27 – A disgruntled former employee kills five people and takes his own life in a shooting rampage at a Minneapolis sign company from which he had been fired.
October 21 – Three people are killed in a Milwaukee area spa including the estranged wife of the suspected gunman, who then killed himself.
December 14, yesterday – A shooter opens fire at the Sandy Hook Elementary School in Newtown, Connecticut, killing several people including children.